It would depend on the sales volume. For a long time the iPad has been available and many developers simply are content to have a stretched version of their iPhone app on their iPad, because the sales volume isn’t sufficient. If foldable phones sell like iPads, this could very well happen to them too.
I still think that there are very few examples of apps that utilize tablets well even among the apps that aren't stretched phone apps. I don't know if it is the ergonomics of the large screen or what, but the experience of using a tablet has always been pretty bad in my opinion.
Maybe the folding phone form factor will inspire some better UI/UX for apps.
The rumours say 10 million iPhone Duo are being made, there are hundreds of millions of iPads so the numbers might not sway any opinions for a while.
I think they need to aggressively court developers, just give a buttload of advertising credit to nice apps that predate AI slop if they add compatibility, what does it cost Apple to "give" you $10k or $20k credit in their own ad system...
But the rumours also say they are going to squeeze the App Store for higher margins so maybe it is too late.
